surface noise writing blocks!

with changes from d69ac516 - now have blocking when writing surfaces

reported by @Prashant

assigned to @mark

• cause is an oversight in the writing management. Originally had writing always disabled on non-master, but with the updated code (using lazy evaluation of surface data) need to have the full write/no-write logic be identical on all ranks and take care of master/non-master at the last stage.

mentioned in commit aebd79ff

closed

@Prashant - should be fixed now